tested chromium versions with this arg: --audio-buffer-size=8192
to have no effect on this issue: https://bugs.chromium.org/p/chromium/issues/detail?id=629695

-rw-r--r-- 1 z z 170516480 18.07.2016 14:23 chromium-dev-54.0.2800.0_r22.43b9c63-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 170977280 18.07.2016 17:17 chromium-dev-54.0.2800.0_r33.c451c08-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 172431360 18.07.2016 18:00 chromium-dev-54.0.2800.0_r35.1ce44d2-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 172441600 18.07.2016 23:51 chromium-dev-54.0.2800.0_r54.7a44b9e-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 172472320 19.07.2016 05:36 chromium-dev-54.0.2800.0_r149.9448608-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 164945920 19.07.2016 14:03 chromium-dev-54.0.2801.0_r277.4f82b40-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 164218880 19.07.2016 17:26 chromium-dev-54.0.2801.0_r296.b6208b9-1-x86_64.pkg.tar
-rw-r--r-- 1 z z 163962880 19.07.2016 19:19 chromium-dev-54.0.2801.0_r327.e60df82-1-x86_64.pkg.tar

-rw-r--r-- 1 z z 168151040 20.07.2016 13:07 chromium-dev-54.0.2803.0_r554.e52ba8d-1-x86_64.pkg.tar

---------
add chromium-hotwording-2403.patch
but modify it first so that only the #ifdefs remain and rename and add a suffix to that symbol, so it acts as if it's always disabled!

---
------

this won't play: https://twitter.com/dexbonus/status/755512409092034561
error	FFmpegDemuxer: data source error
error	FFmpegDemuxer: open context failed
pipeline_error	demuxer: could not open

but this will: https://twitter.com/AnnaKendrick47/status/755485525448863744
although it previously didn't until new tab!

as reported by vlc,

these are the same:
Type: Video
Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Decoded format: Planar 4:2:0 YUV
Orientation: Top left
Chroma location: Left


only these are different:
doesn't work:
Display resolution: 480x360
Buffer dimensions: 480x386
Frame rate: 10.004653

works:
Display resolution: 1042x782
Buffer dimensions: 1056x802
Frame rate: 1.273190



the foop! now it just randomly works again! (after restarting chromium - tho did this many times)

-------

//try without applying this patch:
//chromium-system-ffmpeg-r3.patch
//with enabled and disabled: #new-audio-rendering-mixing-strategy
DONE both ^ --no effect! 

//won't work, compile errors! //trying partial patch(that big blob not being removed; but removing the internal.h deprecated stuff)


-----

try chrome://flags
New audio rendering mixing strategy Mac, Windows, Linux, Android
#new-audio-rendering-mixing-strategy

Tried this flag on enabled then disabled,
with the following chromium versions,
but no change on the issue(629695):
-rw-r--r-- 1 z z 168151040 20.07.2016 13:07 chromium-dev-54.0.2803.0_r554.e52ba8d-1-x86_64.pkg.tar


-rw-r--r-- 1 z z 168151040 20.07.2016 15:17 chromium-dev-54.0.2803.0_r576.8281029-1-x86_64.pkg.tar

that's odd, the size is the same?!!

------

fix this in depottools, so that if that stat error happens, you ignore it!!!:

________ running 'download_from_google_storage --no_resume --platform=linux* --no_auth --bucket chromium-gn -s src/buildtools/linux64/gn.sha1' in '/home/z/build/1packages/chromium-dev-git/fetch_gclient_base/checkout_root'
Copying gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52...

file_url=gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52
('the error is: ', '', 'for command', ['/usr/bin/python2', '/opt/depot_tools/gsutil.py', '--force-version', '4.15', 'ls', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52'], 'out is', "gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52\n('Ignoring force version: ', '4.15', '/opt/depot_tools/external_bin/gsutil')\n('Fallback: ', '/opt/depot_tools/third_party/gsutil/gsutil')\n('Cmd: %s', ['/usr/bin/python2', '/opt/depot_tools/third_party/gsutil/gsutil', 'ls', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52'])\n")
0> Downloading src/buildtools/linux64/gn...
('the error is: ', 'Copying gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52...\n', 'for command', ['/usr/bin/python2', '/opt/depot_tools/gsutil.py', '--force-version', '4.15', 'cp', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52', 'src/buildtools/linux64/gn'], 'out is', "('Ignoring force version: ', '4.15', '/opt/depot_tools/external_bin/gsutil')\n('Fallback: ', '/opt/depot_tools/third_party/gsutil/gsutil')\n('Cmd: %s', ['/usr/bin/python2', '/opt/depot_tools/third_party/gsutil/gsutil', 'cp', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52', 'src/buildtools/linux64/gn'])\n")
('the error is: ', 'CommandException: Invalid command "stat".\n', 'for command', ['/usr/bin/python2', '/opt/depot_tools/gsutil.py', '--force-version', '4.15', 'stat', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52'], 'out is', "('Ignoring force version: ', '4.15', '/opt/depot_tools/external_bin/gsutil')\n('Fallback: ', '/opt/depot_tools/third_party/gsutil/gsutil')\n('Cmd: %s', ['/usr/bin/python2', '/opt/depot_tools/third_party/gsutil/gsutil', 'stat', 'gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52'])\n")
0> Copying gs://chromium-gn/a95c41cc948827cf263b4ab76d636e6376816b52...

Downloading 1 files took 4.620926 second(s)
Error: Command 'download_from_google_storage --no_resume --platform=linux* --no_auth --bucket chromium-gn -s src/buildtools/linux64/gn.sha1' returned non-zero exit status 1 in /home/z/build/1packages/chromium-dev-git/fetch_gclient_base/checkout_root

